SAE AMS3138/4 Coating Material, Fluorocarbon (FKM) Elastomeric, Anti-Static Topcoating, Black
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来源:标准资料网
Product Code:SAE AMS3138/4
Title:Coating Material, Fluorocarbon (FKM) Elastomeric, Anti-Static Topcoating, Black
Issuing Committee:Ams G8 Aerospace Organic Coatings Committee
Scope: This specification covers a fluorocarbon (FKM) elastomeric coating material for fiber-reinforced-resin composite structures in the form of a two-component, brushable or sprayable liquid. Primarily as a topcoating over AMS 3138/1, AMS 3138/2, or AMS 3138/3 base coating for protection of aircraft and missile radomes and other components from static.
【英文标准名称】:PracticeforEstimatingtheApproximateResidualCircumferentialStressinStraightThin-WalledTubing
【原文标准名称】:估算直薄壁管中近似剩余周边应力惯例
【标准号】:ANSI/ASTME1928-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:1999-12-07
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:金属导管;质量要求;应力
【英文主题词】:metalconduits;stress;qualityrequirements
【摘要】:Aqualitativeestimateoftheresidualcircumferentialstressinthin-walledtubingmaybecalculatedfromthechangeinoutsidediameterthatoccursuponsplittingalengthofthetubing.Thispracticeassumesalinearstressdistributionthroughthetubewallthicknessandwillnotprovideanestimateoflocalstressdistributionssuchassurfacestresses.(Veryhighlocalresidualstressgradientsarecommonatthesurfaceofmetaltubingduetocolddrawing,peening,grinding,etc.)TheHatfieldandThirkellformula,aslatermodifiedbySachsandEspey,providesasimplemethodforcalculatingtheapproximatecircumferentialstressfromthechangeindiameterofstraight,thin-walled,metaltubing.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:77_140_75
【页数】:
【正文语种】:英语
【英文标准名称】:StandardGuideforMutualInductanceBridgeApplicationsforWallThicknessDeterminationsinBoilerTubing
【原文标准名称】:互感电桥测定锅炉管壁厚度的标准指南
【标准号】:ASTME2337/E2337M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:桥接电路;电感测量;互感桥;壁厚度;无铁磁性钢;桥技术;铁磁性材料/测试;锅炉
【英文主题词】:bridgecircuit;inductancemeasurement;mutualinductancebridge;wallthickness;Nonferromagneticsteel;Wallthickness;Bridgetechnique;Ferromagneticmaterial/testing;Inductancemeasurement;Boilerfurnaces;Mutualinductancebridge
【摘要】:Theprimaryadvantageofamutualinductancebridgeisitsabilitytomakewallthicknessmeasurementsquickly.Sincesurfacecontaminants(ashandslag)arenotferromagnetic,theydonotinterferewiththeelectromagneticmeasurement.Asaresult,thesurfacerequiresnopreparation.Sinceawidevarietyofsteelsareemployedinaboiler,anin-situstandardizationusingthematerialundermeasurementasthereferenceisadequate.1.1Thisguidedescribesaprocedureforobtainingrelativewallthicknessindicationsinferromagneticandnon-ferromagneticsteelsusingthemutualinductancebridgemethod.Theprocedureisintendedforusewithinstrumentscapableofinducingtwosubstantiallyidenticalmagneticfieldsandnotingthechangeininductanceresultingfromdifferingamountsofsteel.Itisusedtodistinguishacceptablewallthicknessconditionsfromthosewhichcouldplacetubularvesselsorpipingatriskofburstingunderhightemperatureandpressureconditions.1.2ThisguideisintendedtosatisfytwogeneralneedsforusersofindustrialMutualInductanceBridge(MIB)equipment:(1)theneedforatutorialguideaddressingthegeneralprinciplesofMutualInductanceBridgesastheyapplytoindustrialpiping;and(2)theneedforaconsistentsetofMIBperformanceparameterdefinitions,includinghowtheseperformanceparametersrelatetoMIBsystemspecifications.Potentialusersandbuyers,aswellasexperiencedMIBexaminers,willfindthisguideausefulsourceofinformationfordeterminingthesuitabilityofMIBforparticularexaminationproblems,forpredictingMIBsystemperformanceinnewsituations,andfordevelopingandprescribingnewscanprocedures.1.3ThisguidedoesnotspecifytestobjectsandtestproceduresforcomparingtherelativeperformanceofdifferentMIBsystems;nordoesittreatelectromagneticexaminationtechniques,suchasthebestselectionofscanparameters,thepreferredimplementationofscanprocedures,theanalysisofimagedatatoextractwallthicknessinformation,ortheestablishmentofaccept/rejectcriteriaforanewobject.1.4Standardpracticesandmethodsarenotwithinthepurviewofthisguide.Thereaderisadvised,however,thatexaminationpracticesaregenerallypartandapplicationspecific,andindustrialMIBusageisnewenoughthatinmanyinstancesaconsensushasnotyetemerged.ThesituationiscomplicatedfurtherbythefactthatMIBsystemhardwareandperformancecapabilitiesarestillundergoingsignificantevolutionandimprovement.Consequently,anattempttoaddressgenericexaminationproceduresiseschewedinfavorofprovidingathoroughtreatmentoftheprinciplesbywhichexaminationmethodscanbedevelopedorexistingonesrevised.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:J98
【国际标准分类号】:27_060_30
【页数】:5P.;A4
【正文语种】:
